<template>
  <div>
    <!--面包屑导航区域-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!--卡片视图区域-->
    <el-card class="box-card">
      <el-row :gutter="20">
        <el-col :span="9">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            @clear="getUserList"
            clearable
          >
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!--用户列表区域-->
      <el-table :data="userList" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column prop="username" label="姓名"></el-table-column>
        <el-table-column prop="email" label="邮箱"></el-table-column>
        <el-table-column prop="mobile" label="电话"></el-table-column>
        <el-table-column prop="role_name" label="角色"></el-table-column>
        <el-table-column prop="mg_state" label="状态">
          <template v-slot="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="190px">
          <template v-slot="scope">
            <!--修改按钮-->
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
            <!--删除角色按钮-->
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
            <!--分配角色按钮-->
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!--页码-->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total">
      </el-pagination>
    </el-card>
    <!--添加用户对话框-->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClosed"
    >
      <el-form :rules="addFormRules" label-width="70px" :model="addForm" ref="addFormRef">
        <el-form-item label="用户名" prop="username">
          <el-input placeholder="请输入姓名" v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input placeholder="请输入密码" v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input placeholder="请输入邮箱" v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input placeholder="请输入手机" v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!--修改用户对话框-->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed"
    >
      <el-form :rules="editFormRules" label-width="70px" :model="editForm" ref="editFormRef">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
    <!--分配角色对话框-->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleDialogClosed"
    >
      <div>
        <p>当前的用户：{{this.userInfo.username}}</p>
        <p>当前的角色：{{this.userInfo.role_name}}</p>
        <p>分配新角色：
          <el-select v-model="selectRoleId" placeholder="请选择">
            <el-option
              v-for="item in roleInfo"
              :key="item.id"
              :label="item.roleName"
              :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
  export default {
    name: "Users",
    data(){
      //验证邮箱规则
      var checkEmail=(rule,value,callback)=>{
        const regEmail=/^[a-zA-Z0-9_-]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/;
        if(regEmail.test(value)){
          return callback();
        }
        callback(new Error("请输入合法邮箱"));
      };
      //验证手机号规则
      var checkMobile=(rule,value,callback)=>{
        const regMobile=/^1[3456789]\d{9}$/;
        if(regMobile.test(value)){
          return callback();
        }
        callback(new Error("请输入合法手机号"));
      }
      return{
        //获取用户列表的参数对象
        queryInfo:{
          query:"",
          //当前的页数
          pagenum:1,
          //当前显示数据数量
          pagesize:2
        },
        userList:[],
        //数据总数
        total:0,
        //添加用户对话框是否弹出
        addDialogVisible: false,
        //修改用户对话框是否弹出
        editDialogVisible:false,
        //分配角色对话框是否弹出
        setRoleDialogVisible:false,
        //添加的用户数据
        addForm:{
          username:"",
          password:"",
          email:"",
          mobile:""
        },
        //修改查询的用户数据
        editForm:{},
        //分配角色是用户数据
        userInfo:{},
        //所有的角色列表
        roleInfo:[],
        //已选中角色的id值
        selectRoleId:"",
        //添加表单验证规则对象
        addFormRules:{
          username: [
            { required: true, message: '请输入用户名', trigger: 'blur' },
            { min: 6, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
          ],
          password:[
            { required: true, message: '请输入密码', trigger: 'blur' },
            { min: 6, max: 16, message: '长度在 6 到 16 个字符', trigger: 'blur' }
          ],
          email:[
            { required: true, message: '请输入邮箱', trigger: 'blur' },
            { validator:checkEmail, trigger: 'blur' }
          ],
          mobile:[
            { required: true, message: '请输入手机号码', trigger: 'blur' },
            { validator:checkMobile, trigger: 'blur' }
          ]
        },
        //修改表单验证规则对象
        editFormRules:{
          email:[
            { required: true, message: '请输入邮箱', trigger: 'blur' },
            { validator:checkEmail, trigger: 'blur' }
          ],
          mobile:[
            { required: true, message: '请输入手机号码', trigger: 'blur' },
            { validator:checkMobile, trigger: 'blur' }
          ]
        }
      }
    },
    created() {
      this.getUserList();
    },
    methods:{
      //获取用户列表
      async getUserList(){
        const result=(await this.$http.get("users", {params: this.queryInfo})).data;
        if(result.meta.status!==200) return this.$message.error("获取用户列表失败");
        this.userList=result.data.users;
        this.total=result.data.total;
      },
      //监听pagesize改变事件
      handleSizeChange(newSize){
        this.queryInfo.pagesize=newSize;
        this.getUserList();
      },
      //监听页码值改变事件
      async handleCurrentChange(newSize){
        this.queryInfo.pagenum=newSize;
        this.getUserList();
      },
      //监听switch状态的改变
      async userStateChange(userInfo){
      const result=(await this.$http.put("users/" + userInfo.id + "/state/" + userInfo.mg_state)).data;
      if(result.meta.status!==200) {
        userInfo.mg_state=!userInfo.mg_state;
        return this.$message.error("状态更新失败");
      };
      this.$message.success("更新状态成功");
      },
      //添加用户对话框关闭重置对话框
      addDialogClosed(){
        this.$refs.addFormRef.resetFields();
      },
      //添加新用户
      addUser(){
        //预校验
        this.$refs.addFormRef.validate(async valid=>{
          if(!valid) return;
          const result=(await this.$http.post("users", this.addForm)).data;
          if(result.meta.status!==201) return this.$message.error("添加新用户失败");
          this.$message.success("添加新用户成功");
          this.addDialogVisible=false;
          this.getUserList();
        })
      },
      //修改查询用户数据
      async showEditDialog(id){
        const result=(await this.$http.get("users/" + id)).data;
        if(result.meta.status!==200) return this.$message.error("查询用户数据失败");
        this.editForm=result.data;
        this.editDialogVisible=true;
      },
      //修改用户对话框关闭重置对话框
      editDialogClosed(){
        this.$refs.editFormRef.resetFields();
      },
      //修改用户数据
      editUserInfo(){
        this.$refs.editFormRef.validate(async valid=>{
          if(!valid) return;
          //发起修改用户数据请求
          const result=(await this.$http.put("users/" + this.editForm.id,
            {email: this.editForm.email, mobile: this.editForm.mobile})).data;
          if(result.meta.status!==200) return this.$message.error("修改数据失败");
          this.$message.success("修改数据成功")
          this.getUserList();
          this.editDialogVisible=false;
        })
      },
      //删除用户
      removeUserById(id){
        //用户确认删除，返回字符串confirm，取消删除，返回字符串cancel
        this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        })
          .then(async () => {
            const result=(await this.$http.delete("users/" + id)).data;
            if(result.meta.status!==200) return this.$message.error("删除用户失败");
            this.$message.success('删除成功!');
            this.getUserList();
          })
          .catch(() => {
          this.$message.info('已取消删除');
        });
      },
      //展示分配角色对话框
      async setRole(userInfo){
        this.userInfo=userInfo;
        //获取所有的角色列表
        const result=(await this.$http.get("roles")).data;
        if(result.meta.status!==200) return this.$message.error("获取角色列表失败");
        this.roleInfo=result.data;
        this.setRoleDialogVisible=true;
      },
      //点击按钮，分配角色
      async saveRoleInfo(){
        if(!this.selectRoleId){
          return this.$message.error("请选择要分配的角色");
        }
        const result=(await this.$http.put("users/" +this.userInfo.id+ "/role",{rid:this.selectRoleId})).data;
        console.log(result);
        if(result.meta.status!==200) return this.$message.error("分配角色失败");
        this.$message.success("分配角色成功");
        this.getUserList();
        this.setRoleDialogVisible=false;
      },
      //分配角色对话框关闭重置
      setRoleDialogClosed(){
        this.selectRoleId="";
        this.userInfo={};
      }
    }
  }
</script>

<style scoped lang="less">

</style>
